Pipe-coupling.



H. AEBLI.

PlPE COUPLING. APPLICATION FILED AUG-24. I916.

I Patent ed J1me 5, 1917.

nnivnr AEBLI, or PORTLAND, oneeou.

rIrE-cournmc.

Application filed August 24, 1916. Serial No. 116,692.

To all whom it may concern:

Be it known that I,{HENRY Amer-.1, a citizen of the Republic of Switzerland, residing at Portland, in the county of Multnomah, State of Oregon, have invented certain new and useful Improvements in Pipe Oouplings, of which the following is a description, reference being had to the accompanying drawings, forming a part hereof.

This invention relates to a steam pipe coupling and particularly to a construction thereof involving a swiveled. joint.

The invention has for an object to provide a novel and improved constructionof swiveled steam pipe coupling "comprising a pipe member having a head to cooperate with a similar member having'a socket and a coupling sleeve slidingly mounted upon said head and provided at one end with a recessed seat to bear against the inner surface of the head, and a peripheral edge to.

contact with the base of the socket surrounding the joint between said head and socket.

Other and further objects and advantages of the invention will be hereinafter set forth and the novel features thereof defined by the parts in the several figures of the drawings.

The numeral 10 designates a pipe member provided at one end with a head 11 having an outer ground bearing face 12 and an inner face 13 of similar character. This pipe member is adapted to be assembled for connection in any desired manner, for instance, by means of an elbow 14 with pipe or hose line 15, as indicated in Fig. 1.

Cooperating with the head His a socket member 16 carried by a pipesection whlch may be either an elbow 17, as, shown, or

otherwise. The base of this socket at 18' is suitably ground to provide a steam-tight contact with the face 12 of the head. This socket member is connected in any desired manner with a pipe or conducting line v19, as shown in Fig.

. Specification of Letters Patent.

wrench hold or flange 23 having the contact or clamping faces 24 and 25 adapted to cooperate with the other members, as hereinafter described. One end of this sleeve is recessed at 26, as shown in Figs. 2 and 4, and the base thereof provided with a ground bearing 27 adapted to contact with and make a steam joint against the inner face 13 of the head 11, as shown in Fig. 4. The edge 28 of this recessed portion is similarly ground and adapted to bear against the contact face 18 of the socket member and extends peripherally of the head, as shown.

In assembling the parts, this sleeve is adjusted in position, as shown in Fig. 4, so as to force the head 11 into contact with the base of the socket and also the bearing edge This the outer edge 29 of the socket forming a tight joint at that point. A locking nut 30 is also provided and is slidingl'y mounted upon the pipe member 10 so that the interior threads 31 thereof may engage the threaded portion 22 of the sleeve and the inner face 32 of this nut come into contact with the face 25 of the sleeve, as clearly shownrin Fig. 4.

In the operation of the invention, it will be seen that when the clamping sleeve is ad justed in position, three metallic bearings are provided against the socket member. These constitute the bearing of the head of the pipe section against the face of the socket, the bearing of the sleeve peripherally to said head, the bearing of said sleeve against the inner face of said head and the bearing of the wrench flange against the outer edge of the socket. This produces an effective all metal steam or fluid pressure coupling allowing a 'swiveled movement and .avoiding the use of any packing material which would be affected either by heat or pressure. The lock nut also provides an additional bearing against the sleeve so that the invention presents a simple and economically manufactured construction of coupling for steam or other fluid pressure pipes in which .no packing material is used which would be affected by the medium passing through the'pipe and a tight joint secured which still permits a freepivotal or swinging movement of the section connected for that purpdse. While the coupling has been i shown as connected by elbows and other details disclosed, it will be obvious that the invention is not confined thereto, as indis'cated by-the accompanying claim.

What I claim is An all metal swivel pipe coupling consisting of a pipe member having a head at one end provided with a recess and a screwthreaded flange, the outeredge of the flange and the base of the recess each being proing in contact with the bearing surface at the base of the recess in said head and one face of its central peripheral flange in contact with the outer edge of the flange on said head, a threaded coupling sleeve mounted on the socket member-and inclosing the end thereof, and a revoluble pipe member having a head resting in the recess in the socket member and extending through the socket member and out through the coupling sleeve.

This specification v signed and witnessed this 27th day of July,'A. D. 1916.

HENRY 'AEBLI. In the presence of ALBERT STREIFF, HENRY O. PRUDHOMME. 

